diff --git a/fuel_health/muranomanager.py b/fuel_health/muranomanager.py
index 46b656ed..0b88ce08 100644
--- a/fuel_health/muranomanager.py
+++ b/fuel_health/muranomanager.py
@@ -16,7 +16,6 @@
 import contextlib
 import logging
 import os
-import socket
 import time
 import traceback
 import zipfile
@@ -359,16 +358,16 @@ class MuranoTest(fuel_health.nmanager.PlatformServicesBaseClass):
         return 'OK'
 
     def check_port_access(self, ip, port):
-        result = 1
+        output = ''
         start_time = time.time()
         while time.time() - start_time < 600:
-            sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
-            result = sock.connect_ex((str(ip), port))
-            sock.close()
-            if result == 0:
+            # Check VM port availability from controller node:
+            output, err = self._run_ssh_cmd("nc -z {0} {1}; echo $?"
+                                            .format(ip, port))
+            if '0' in output:
                 break
             time.sleep(5)
-        self.assertEqual(0, result, '%s port is closed on instance' % port)
+        self.assertIn('0', output, '%s port is closed on instance' % port)
 
     def port_status_check(self, environment, configurations):
         """Function which gives opportunity to check multiple instances
@@ -467,8 +466,8 @@ class MuranoTest(fuel_health.nmanager.PlatformServicesBaseClass):
             ip = self.get_ip_by_instance_name(environment, inst_name)
         else:
             ip = environment.services[0]['instance']['floatingIpAddress']
-        resp = requests.get('http://{0}/{1}'.format(ip, path), verify=False)
-        if resp.status_code == 200:
-            pass
-        else:
+        uri = 'http://{0}/{1}'.format(ip, path)
+        cmd = "curl --connect-timeout 1 --head {0}".format(uri)
+        stdout, stderr = self._run_ssh_cmd(cmd)
+        if '404' in stdout:
             self.fail("Service path unavailable")